PORTLAND, Ore. ( KOIN ) — Flooding rains, damaging winds and the threat of thunderstorms is expected for western Oregon and southwest Washington through Wednesday.
A powerful atmospheric river will push warmer, windy, and stormy weather into the region late Tuesday night and continue through Wednesday. The Portland National Weather Service has issued a wind and flood advisory for the Willamette Valley that lasts through Wednesday. This comes as the Storm Prediction Center issues a rare “ Marginal Risk ” for severe weather for the Oregon and Washington Coast on Wednesday.
Thunderstorm threat Wednesday
Thunderstorms are likely along the coast early Wednesday morning and through the afternoon hours. A “Marginal Risk” for severe weather means there is a 1-in-5 chance of seeing severe weather. Severe weather includes large hail, damaging winds, and the potential tornado chance.
National Weather Service confirms tornado touchdown on the Oregon Coast
A stray thunderstorm or two is possible along the Willamette Valley. The chance is slightly less Wednesday, but does remain.